Roll stop for a roll deck



March 11, 1969 J. H. ARSENAULT v 3, 32,076

ROLL STOP FOR A ROLL DECK Filed May 18, 1967 Sheet of 2 Jamesffflrdena225i March 11, 1969 J. H. ARSENAULT 3,432,076

ROLL STOP FOR A ROLL DECK Filed May 18, 1967 Sheet 3 of 2 United StatesPatent 2 Claims ABSTRACT OF THE DISCLOSURE A roll stop including twomovable, retractible, stop members, the main one of which stops theentire line of rolls and the other or auxiliary stop being mounted onbut relatively movable with respect to the main stop member and isarranged to stop the second roll and the rolls thereafter uponretraction of the first stop to release the first roll; wherein the twostop members are relatively movable but operate together and areconnected by a spring so that the auxiliary member operates with anysize of roll, being depressible by a large roll but springing up toaccomplish its auxiliary stopping action due to the spring immediatelythe large roll has moved from its stopped position.

This invention relates to a new and improved stop for rolls as on a rolldeck, and the principal object of the invention resides in the provisionof a construction which will operate without malfunction regardless ofthe size of the rolls encountered, so that the same mechanism withoutchange can be used for a deck processing relatively large rolls, fordecks processing small rolls, and for decks which may encounter rolls ofvarying diameters.

Another object of the invention resides in the provision of a roll stopmechanism comprising a main stop element and an auxiliary pawl movablymounted with relation thereto, together with means for moving the mainstop element between a position stopping a line of rolls and a positionreleasing a roll, wherein the auxiliary pawl is moved into a positionstopping the second and subsequent rolls at the same time that the mainstop is retracted releasing the first roll in the line; and theprovision of a device of the class described wherein the auxiliary pawlis mounted relative to the main stop member and is connected thereto byresilient means so that as the auxiliary pawl is moved into rollstopping position, it is depressible momentarily if the roll beingreleased is of relatively large diameter. As soon as the released rollhas gone down the ramp, the auxiliary pawl is then urged upwardlythrough the surface of the deck in roll stopping position by means ofthe resilient connection, whereby rolls of substantially any diametercan be conveniently processed.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which:

FIG. 1 is a view in side elevation illustrating the invention andshawing the main roll stopping element in roll stopping position and theauxiliary pawl in retracted inoperative position;

FIG. 2 is a plan view of the apparatus shown in FIG.

FIG. 3 is a view similar to FIG. 1 on a larger scale illustrating themain stop in retracted position to release the first roll, andillustrating in solid and dotted lines the action of the auxiliary pawlunder influence of such roll, and

FIG. 4 is a view similar to 'FIG. 3 illustrating the action withrelation to a roll having a diameter larger than the rolls beingprocessed with reference to FIG. 3.

3,432,076 Patented Mar. 11, 1969 In the drawing, the reference numeral10 indicates a ramp or roll deck of any convenient kind and adapted forany convenient mechanism. This deck serves as a magazine for a series ofrolls as at 12, 14, 16, etc., these rolls being held in position as inFIG. 1 until such time as the first roll, i.e., as at 12, is desired tobe released to roll down the ramp to some other processing machinery notdisclosed.

Under the deck there is in this case provided a power operated meanse.g. a power cylinder 18 which is provided with a rectilinearly poweroperated device e.g. piston rod 20. A powerful solenoid could of coursebe used instead or any other power means desired. The power operatedelement 20' is connected as by a bracket 22 to a cross shaft 24extending across the deck and having connected thereto at the endsthereof a pair of levers 26, 26, these being pivoted at their oppositeends as for instance on rod 28 to brackets 30- mounted anywhere desired.The power device 18 itself may also be properly mounted on a pivotarrangement at 32 on a bracket 34- in order to operate freely.

Proper controls are provided with respect to the power device .18 tocause it to operate under the control of an operator or in some cases byautomatic machinery at the required interval when the roll 12 is desiredto be released.

Also pivotally mounted with respect to shaft 24 there are main roll stopmembers A. Roll stop members are free-ended and mounted on the framework10 to pivot thereon as by pins or the like 36 operating in slots 38 inthe roll stop members. There is one of these main stop members at eachside of the machine as clearly shown in FIG. 2. It will be seen that asthe power device .18 is operated, it will tend to move the levers 26, 26in a counterclockwise direction, thus moving the main stop members A, Ain a clockwise direction, the slot 38 providing for lost-motion.Retraction of the power device 18 will cause the parts to move backagain to the FIG. 1 position where the operative ends of the main stoproll members A, A are in roll-stopping position.

Pivotally mounted on each of the main roll stop members A, A is anauxiliary stop pawl B. These pawls are located substantially normal withrespect to the respective main roll stop member A, and each is so heldby means of a resilient device such as a spring indicated at 40. Ifpressure is applied to the free end of the auxiliary stop pawl B in acounterclockwise direction, the free ends of the members A and B willseparate.

Assuming the parts to be located in the FIG. 1 position with the mainstop members A, A holding the line of rolls 12, 14, 16, etc., on theramp, and it is desired to release one roll only, i.e., that at 12, itis only necessary for the operator, or automatic controls, to operatethe power device 18 to tend to move the levers 26 from the FIG. 1position to the position shown in FIGS. 3 and 4 wherein the main rollstop elements A, A are retracted and the initial roll, i.e., 12, is thenreleased.

At the same time however it will be seen that the auxiliary rollstopping pawl B extends upwardly to the left in a position to interceptroll 14 and the rest of the rolls thereafter, thus holding the same inposition until the main roll stop members A, A can once more be movedinto the position shown in FIG. 1. This action is a sort of transferaction, the line of rolls being stopped initially by auxiliary stop pawsand then being finally stopped by the main roll stop members A.

Now in FIG. 1, if the rolls have a small diameter relative to thestopping members as shown in FIG. 1, there is no need for any relativemotion between stop members A and B. The pawl B will merely rise to thedotted line position in FIG. 3, the initial roll having left this area,to move down the ramp. On the other hand however, supposing the rolls tobe enlarged with respect thereto as shown in FIG. 4, the free end of theauxiliary stop pawl B would come up into engagement with the surface ofthe roll at the lower side thereof and this would therefore stop theoperation of the entire mechanism except for the fact that the auxiliarystop pawl B is resiliently mounted and will move counterclockwise aboutits pivot point on the respective main stop member A. This is shown insolid lines in FIG. 3 and in dotted lines in FIG. 4. Thus there is nointerference with the action due to the large roll which cannot movedown the ramp out of the way fast enough. Thus the large roll does notinterfere with the action of the stop members and as soon as the rollhas proceeded far enough to leave auxiliary stop pawl B, the spring willinsure that the stop pawl is projected sufficient- 1y beyond the surfaceof the roll deck to stop the second roll, i.e., the roll 14 and thosebehind it.

In order to return the parts to the original position, any kind ofreversal mechanism can be utilized and in this case it is done byproviding a microswitch 42 mounted on framework which is engaged by themain stop member A in its lowermost position to energize means to causethe power operated device 18 to move in the opposite direction andretract the parts to the FIG. 1 position. During this action thestopping action is transferred from auxiliary stop pawl B to the mainstop member A once more and the rolls move down from the stop positionof auxiliary pawl B as indicated at 46 in FIG. 3 to the position of therolls shown in FIG. 1.

Therefore it wil be seen that the same mechanism can be used to processrolls of any diameter within a reasonable range. A series of rolls ofvaried diameters can be processed as well as a series of relativelysmaller rolls or a series of relatively larger rolls.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is:

1. Roll stopping mechanism for an inclined roll deck comprising amovable main stop member having an end projectable relative to thesurface of the roll deck to stop a series of rolls thereon, said mainstop member being movable to a retracted position to release the firstroll in the series, and means for moving the main roll stop memberbetween roll stopping and releasing positions,

an auxiliary stop pawl pivotally mounted on the main stop memberintermediate the ends of the latter, and being spaced upwardly on theinclined deck from the main stop member, said stop pawl being movablebetween a normal retracted position of the main stop member, the mainstop member moving the auxiliary stop pawl, said stop pawl beingoperative to stop said second roll and the remainder of the series ofrolls during the period of retraction of the main stop member to releasethe first roll,

means returning the main stop member and the auxiliary stop pawl totheir original positions wherein the second roll and rolls thereafter inseries move past the stop pawl to a position wherein they are stopped bysaid main stop member,

and yieldable means normally holding the auxiliary stop pawl in its rollstopping position, said auxiliary stop pawl thereby being depressible bya roll released by the main stop member but still in the path of theauxiliary stop pawl, the auxiliary stop pawl being pivotable relative tothe main stop member and normally held in predetermined roll-stoppingposition relative thereto by said yieldable means, said stop pawl beingotherwise unconstrained.

2. A roll stopping mechanism for an inclined roll deck for a series ofrolls thereon, the rolls moving down the deck by gravity, means forstopping the line of rolls, said means comprising a main stop memberpivotally and slidably associated with respect to said deck and having afree end portion normally projecting beyond the surface of the deck in aposition to stop the line of rolls,

means to pivot and slide said main stop member to retract the samewithin the deck to allow the line of rolls to proceed down the inclinedramp,

an auxiliary stop pawl pivotally mounted on the main stop member, meansyieldably holding the pawl relative to the main stop member in aposition to project a portion of the auxiliary stop pawl beyond thesurface of the deck to stop the second roll simultaneously withretraction of the main stopping member to release the first roll,whereby but a single roll is allowed to proceed down the ramp, theyielding means connecting the main stop member and the auxiliary stoppawl normally holding the auxiliary stop pawl and the main stop memberin predetermined relationship and allowing yielding of the auxiliarystop pawl under influence of the roll being released in the event thatthe latter fails to move fast enough from its position so that it wouldinterfere with the motion of the auxiliary stop pawl in being projectedthrough the surface of the deck to stop the second roll, said yieldingmeans however causing said auxiliary stop pawl to come into itsoperative stopping position as soon as the first roll has moved out ofcontact therewith.

References Cited UNITED STATES PATENTS 10/1941 Rosan 22l295 XR 2/1965Clark 2141 U.S. Cl. X.R 2l41

